CN110838628B

CN110838628B - Disposable anti-theft connector

Info

Publication number: CN110838628B
Application number: CN201911217757.5A
Authority: CN
Inventors: 雷礼庆; 姚泽林
Original assignee: FCI Nantong Ltd
Current assignee: FCI Nantong Ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-09-18
Anticipated expiration: 2039-12-03
Also published as: CN110838628A

Abstract

The invention discloses a disposable anti-theft connector which comprises a first plug and a second plug, wherein the first plug is inserted into the second plug, a first convex block is arranged in a seventh groove in a penetrating mode, and a second inner hook of a second conductive terminal is abutted to the first conductive terminal. It can be appreciated that the design of the second inner hook is beneficial to the electrical performance contact temperature. And a fifth lug of the second fixing mechanism is clamped in the first through hole. When the first plug is pulled out of the second plug, the third lug and the fourth lug on the first plug can hook the second inner hook, so that the second inner hook can be broken from a bent part, or the third pad of the second plug can be driven to be peeled off. It meets the requirement of disposable use and has good anti-theft function.

Description

Disposable anti-theft connector

Technical Field

The invention relates to the field of connectors, in particular to a disposable anti-theft connector.

Background

The conventional small connector cannot be absolutely disposable, and the requirement that the product can be connected after being pulled out after first matching and can be damaged to meet the requirement of incapability of being reused is required. The existing disposable connector is large in size, unreliable in performance, high in failure rate and scarce in disposable small-distance board-to-board connectors.

Disclosure of Invention

In order to overcome the defects in the prior art, the embodiment of the invention provides a disposable anti-theft connector which meets the requirement of disposable use and has a good anti-theft function.

To achieve the above object, an embodiment of the present application discloses a disposable anti-theft connector, including: a first plug and a second plug; the first plug includes:

the first printed circuit board is provided with two first bonding pads and a plurality of second bonding pads, wherein the two first bonding pads are parallel to each other in the length direction, and the second bonding pads are uniformly distributed between the two first bonding pads; the second bonding pads are uniformly arranged in two rows, and the length direction of the second bonding pads is parallel to the length direction of the first bonding pads;

the first fixing mechanisms comprise first plates and second plates, the two first plates are respectively attached to the two first bonding pads, the second plates are vertically arranged on the first plates, and the second plates are simultaneously perpendicular to the first printed circuit board; a first through hole is formed in the second plate and penetrates through the second plate in the thickness direction; the width of one end, far away from the first plate, of the second plate is smaller than that of one end, close to the first plate, of the second plate; the first plate is attached to the first bonding pad;

the first terminals comprise first welding feet and first conductive terminals, and one ends of the first conductive terminals are vertically arranged on one ends of the first welding feet; each first welding foot is attached to the second welding plate, each first conductive terminal is also perpendicular to the first printed circuit board, and each first conductive terminal is arranged in the middle between the two first fixing mechanisms; two sides of one end of the first conductive terminal close to the first welding foot are respectively provided with a first abutting part; the part of the first conductive terminal, which is far away from the first printed circuit board, is bent towards the direction of one end of the first welding leg, which is not connected with the first conductive terminal, and one end of the first conductive terminal, which is far away from the first printed circuit board, is bent towards the other direction to form a first inner hook;

the first plastic body comprises a third plate and a first lug vertically arranged on the third plate; the third plate is integrally in a cuboid plate shape, a second through hole penetrates through the third plate along the thickness direction of the third plate, the cross section of the second through hole is entirely trapezoidal, the longest side of the cross section of the second through hole is parallel to the length direction of the third plate, the shorter two ends of the third plate are respectively provided with a first groove, the longitudinal section of the first groove is trapezoidal, the surface of the opening of the first groove is parallel to the bottom surface of the first groove arranged on the third plate, the length of the opening of the first groove is less than that of the bottom surface, the bottom surface of the first groove is provided with a second bump, two ends of the second plate of the first fixing mechanism are propped against the inner side wall surface of the first groove, the second lug is arranged in the first through hole in a penetrating mode, and the first plate of the first fixing mechanism is arranged on the third plate in an attaching mode; one end of the first lug penetrates through the second through hole, two parallel surfaces of the first lug, which are exposed out of the third plate, are respectively provided with a second groove and a third groove, the length directions of the surfaces with the second grooves and the surfaces with the third grooves are parallel to the length direction of the third plate, the area of the surface with the second grooves is smaller than that of the surface with the third grooves, a plurality of fourth grooves are respectively arranged in the second grooves and the third grooves, the fourth grooves extend from one end, which is far away from the third plate, of the first lug to one end, which is arranged in the second through hole, of the first lug, one end, which is arranged in the second through hole, is matched with the inner wall of the second through hole to form a third through hole, and the wall surface, which is far away from one end of the third plate, of the second groove is provided with the third lug, a fourth bump is arranged on the wall surface of one end of the third groove far away from the third plate, the first terminal is arranged in the third through hole in a penetrating manner, one end, connected with the first solder leg, of the first conductive terminal is arranged in the third through hole in a penetrating manner, the first abutting part abuts against the inner wall of the third through hole, one end, far away from the first solder leg, of the first conductive terminal is arranged in the fourth groove, the inner hook of the first conductive terminal abuts against the wall surface of the fourth groove, the first solder leg is arranged on the opposite surface of the surface, provided with the first bump, of the third plate, and the first solder leg of the first terminal arranged in the second groove is opposite to the first solder leg of the first terminal arranged in the third groove; the second plug includes:

the second printed circuit board is provided with two third bonding pads and a plurality of fourth bonding pads, wherein the two third bonding pads are parallel to each other in the length direction, and the fourth bonding pads are uniformly distributed between the two third bonding pads; the fourth bonding pads are uniformly arranged in two rows, and the length direction of the fourth bonding pads is parallel to the length direction of the third bonding pads;

the two second fixing mechanisms comprise fourth plates and fifth plates, the two fourth plates are respectively attached to the two third bonding pads, the fifth plate is vertically arranged at one end of the fourth plate, and the fifth plate is simultaneously vertical to the second printed circuit board; two sides of one end, close to the fourth plate, of the fifth plate are provided with first convex edges, a fifth convex block is arranged on the surface of one end, far away from the fourth plate, of the fifth plate, the fifth convex block is arranged opposite to the fourth plate, and one end, far away from the fourth plate, of the fifth plate is bent towards the fourth plate;

the plurality of second terminals comprise second welding feet and second conductive terminals, and one end of each second conductive terminal is vertically arranged on one end of each second welding foot; each second welding foot is attached to the fourth welding plate, each second conductive terminal is also perpendicular to the second printed circuit board, and each second conductive terminal is arranged in the middle between the two second fixing mechanisms; two sides of one end of the second conductive terminal close to the second welding foot are respectively provided with a second abutting part; the part of the second conductive terminal, which is far away from the first printed circuit board, is bent towards the direction opposite to the direction of the second welding leg to form a second inner hook, and third abutting parts are arranged on two sides of one end, which is far away from the second printed circuit board, of the second conductive terminal;

the second plastic body comprises a first surface and a second surface which are parallel, a fifth groove is formed in each of two ends of the second plastic body, the longitudinal section of each fifth groove is in a convex shape, each fifth groove penetrates from the first surface to the second surface, a sixth groove is further formed in one end, close to the first surface, of the bottom surface of each fifth groove, two first convex edges on a fifth plate of the second fixing mechanism respectively abut against the side wall surfaces of the fifth grooves, a fifth convex block on the fifth plate is accommodated in the sixth groove, and the fourth plate is arranged on the second surface; the second plastic body is further provided with a seventh groove, the seventh groove is formed in the first surface, the cross section of the seventh groove is isosceles trapezoid, a plurality of eighth grooves are formed in two parallel inner wall surfaces of the seventh groove, a fourth through hole is formed in the bottoms of the eighth grooves, the longitudinal section of each eighth groove is convex, the widest surface of each eighth groove is a bottom surface, the length of an opening of each eighth groove is smaller than that of the bottom surface of each eighth groove, a second conductive terminal of the second terminal is arranged in each fourth through hole and the eighth groove in a penetrating mode, a second inner hook of the second conductive terminal is arranged close to the first surface, a second welding foot is arranged on the second surface, and the second inner hook faces the middle of the seventh groove;

the first convex block of the first plug can be inserted into the seventh groove of the second plug, and the second inner hook of the second conductive terminal can be abutted against the first conductive terminal.

Preferably, two first abutting portions on each first conductive terminal are triangular pyramid-shaped, one rectangular surface of each first abutting portion is attached to and arranged on the side surface of the first conductive terminal, one corner of each first abutting portion is arranged far away from the first conductive terminal relative to the other two corners, and the corner is offset towards one end of the first solder leg where the first conductive terminal is not arranged.

Preferably, two first bosses are arranged on the opposite surface of the third plate provided with the first bump, the two first bosses are respectively arranged close to the two first grooves, and the first bosses are attached to the first plate.

Preferably, a reinforcing rib is arranged at a position where the first bump is connected with the third plate, and the reinforcing rib is arranged on the second groove and the third groove.

Preferably, the area of the third pad is smaller than the area of the first pad.

Preferably, when the first plug is inserted into the second plug, a fifth projection on the second fixing mechanism can be locked in the first through hole of the first fixing mechanism.

The invention has the following beneficial effects:

1. the first plug and the second plug can be damaged by pulling out after being matched for the first time, and the effect that the first plug and the second plug cannot be used again is achieved;

2. the first plug and the second plug are fixed through the locking and buckling matching between the first fixing mechanism and the second fixing mechanism;

3. the area of the first pad is larger than that of the third pad, when the first plug and the second plug are separated, the third lug and the fourth lug on the first plug can hook the second inner hook, so that the first fixing device on the first plug can drive the third pad on the second plug to be stripped from the first plug;

4. when the first plug and the second plug are separated, the third lug and the fourth lug on the first plug can hook the second inner hook, so that the second inner hook can be broken from the bent part, and the damaged effect is achieved.

In order to make the aforementioned and other objects, features and advantages of the invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a disposable anti-theft connector in an embodiment of the present invention;

FIG. 2 is a schematic structural view of a first plug and a second plug in an embodiment of the invention;

FIG. 3 is a schematic structural diagram of a first plug in an embodiment of the present invention;

FIG. 4 is an exploded view of a first plug in an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a first bump according to an embodiment of the present invention;

FIG. 6 is a cross-sectional view of a first bump in accordance with an embodiment of the present invention;

FIG. 7 is a schematic structural view of a second plug in an embodiment of the present invention;

FIG. 8 is an exploded view of a second plug in an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a second plastic body according to an embodiment of the invention;

reference numerals of the above figures:

1. a first plug; 11. a first printed circuit board; 111. a first pad; 112. a second pad; 12. a first terminal; 121. a first conductive terminal; 122. a first abutting portion; 123. a first inner hook; 124. a first solder tail; 13. a first fixing mechanism; 131. a first plate member; 132. a second plate member; 133. a first through hole; 14. a first plastic body; 141. a third plate member; 1411. a second through hole; 1412. a first groove; 1413. a second bump; 1414. a first boss; 142. a first bump; 1421. a second groove; 1422. a third groove; 1423. a fourth groove; 1424. a third bump; 1425. a fourth bump; 1426. reinforcing ribs; 1427. a third through hole;

2. a second plug; 21. a second printed circuit board; 211. a third pad; 212. a fourth pad; 22. a second terminal; 221. a second conductive terminal; 222. a second abutting portion; 223. a second inner hook; 224. a third abutting portion; 225. a second fillet weld; 23. a second fixing mechanism; 231. a fourth plate member; 232. a fifth plate member; 233. a first flange; 234. a fifth bump; 24. a second plastic body; 241. a fifth groove; 2411. a sixth groove; 242. a seventh groove; 2421. an eighth groove; 243. and a fourth via.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature.

To achieve the above purpose, referring to fig. 1, the present invention provides a disposable anti-theft connector, which includes a first plug 1 and a second plug 2.

In the present embodiment, referring to fig. 2, the first plug 1 includes a first printed circuit board 11, a first terminal 12 and a first plastic body 14; the second plug 2 includes a second printed circuit board 21, a second terminal 22 and a second plastic body 24.

In the present embodiment, referring to fig. 3, the first plug 1 includes a first printed circuit board 11 having a rectangular parallelepiped shape, and a first plastic body 14, a first fixing mechanism 13 and a first terminal 12 are disposed on the first printed circuit board 11.

In this embodiment, referring to fig. 4, a first pad 111 and a second pad 112 are disposed on an upper side surface of the first printed circuit board 11, the two first pads 111 are respectively disposed on left and right sides of the first printed circuit board 11, the second pad 112 is divided into two rows and disposed between the two first pads 111, and a number of the second pads 112 in one row is smaller.

Further, referring to fig. 4, the first terminal 12 includes a first solder leg 124 and a first conductive terminal 121, the first conductive terminal 121 is vertically disposed on one end of the first solder leg 124, two sides of one end of the first conductive terminal 121 close to the first solder leg 124 are provided with a first abutting portion 122, an upper portion of the first conductive terminal 121 is bent toward the first solder leg 124, and an upper end of the first conductive terminal 121 is bent toward a direction opposite to the first solder leg 124 to form a first inner hook 123.

Further, referring to fig. 4, the first fixing mechanism 13 includes a first plate 131 and a second plate 132, the second plate 132 is vertically disposed on one side of the first plate 131, a first through hole 133 is disposed on the second plate 132, and one end of the second plate 132 close to the first plate 131 is wider.

Further, referring to fig. 4, the first plastic body 14 includes a third plate 141 and a first protrusion 142, the third plate 141 is a cuboid, the left and right ends of the third plate 141 are respectively provided with a first groove 1412, a second protrusion 1413 is disposed on the bottom surface of the first groove 1412, the second plate 132 is disposed in the first groove 1412, two sides of the second plate 132 abut against the side surfaces of the first groove 1412, and the second protrusion 1413 disposed in the first groove 1412 is inserted into the first through hole 133; the middle portion of the third plate 141 is provided with a second through hole 1411, the lower end of the first bump 142 is inserted into the second through hole 1411, the cross section of the first bump 142 is in an isosceles trapezoid shape, the front side surface of the first bump 142 is provided with a third groove 1422, the rear side surface of the first bump 142 is provided with a second groove 1421, the third groove 1422 and the second groove 1421 are provided with a plurality of fourth grooves 1423, and the fourth grooves 1423 in the second groove 1421 and the fourth grooves 1423 in the third groove 1422 are arranged in a staggered manner.

Further, referring to fig. 5, the left and right sides of the lower side of the third plate 141 are respectively provided with a first boss 1414, and the first plate 131 is attached to the first boss 1414.

Further, referring to fig. 6, the fourth groove 1423 is matched with an inner wall surface of the second through hole 1411 to form a third through hole 1427, a third protrusion 1424 is disposed at an upper end of the second groove 1421, a fourth protrusion 1425 is disposed at an upper end of the third groove 1422, and a reinforcing rib 1426 is disposed at a portion where the lower ends of the third groove 1422 and the second groove 1421 intersect with the third plate 141. The first terminal 12 is inserted into the third through hole 1427 and the fourth groove 1423, the first conductive terminal 121 is inserted into the third through hole 1427 and the fourth groove, the first abutting portion 122 abuts against the side wall surface of the fourth groove, the first inner hook 123 abuts against the bottom surface of the fourth groove, and the first solder fillet 124 is disposed at the lower portion of the third plate 141.

Further, referring to fig. 7, the second plug 2 includes a second printed circuit board 21 having a rectangular parallelepiped shape and a second plastic body 24 vertically disposed on the second printed circuit board 21.

Further, referring to fig. 8, a third pad 211 and a fourth pad 212 are disposed on the second printed circuit board 21, the third pad 211 is disposed on the left and right sides of the second printed circuit board 21, and two rows of the fourth pads 212 are disposed between the two third pads 211.

Further, referring to fig. 8, the second terminal 22 includes a second solder leg 225 attached to the fourth solder pad 212 and a second conductive terminal 221 vertically disposed at one end of the second solder leg 225, a second abutting portion 222 is disposed at one end of the second conductive terminal 221 close to the second solder leg 225, a second inner hook 223 is bent at an upper end of the second conductive terminal 221 toward a direction opposite to the second solder leg 225, and a third abutting portion 224 is disposed at a lower portion of the second inner hook 223 on the second conductive solder leg.

Further, the second plastic body 24 is a cuboid, first fifth grooves 241 are respectively formed in the left side and the right side of the second plastic body 24 in decibel, and sixth grooves 2411 are respectively formed above the bottom surfaces of the fifth grooves 241. A seventh groove 242 is formed in the upper side surface of the second plastic body 24, the cross section of the seventh groove 242 is isosceles trapezoid, a plurality of eighth grooves 2421 are formed in two parallel inner side wall surfaces of the seventh groove 242, and the cross section of the eighth grooves 2421 is convex.

Further, referring to fig. 9, a fourth through hole 243 is disposed at the bottom of the eighth groove 2421.

Further, referring to fig. 9, the second fixing mechanism 23 includes a fourth plate 231 and a fifth plate 232 vertically disposed on the fourth plate 231, a fifth protruding block 234 is disposed on a surface of the fifth plate 232 opposite to the fourth plate 231, first protruding edges 233 are disposed on two sides of one end of the fifth plate 232 close to the fourth plate 231, further, referring to fig. 9, the fifth plate 232 is disposed in the fifth groove 241, the two first protruding edges 233 abut against side wall surfaces of the fifth groove 241, the fifth protruding edges are accommodated in the sixth groove 2411, and the second solder feet 225 are disposed at the bottom of the second plastic body 24 and abut against the third solder pads 211. The second terminal 22 is inserted into the fourth through hole 243 and the eighth groove 2421, the second conductive terminal 221 is inserted into the fourth through hole 243 and the eighth groove 2421, the second abutting portion 222 and the third abutting portion 224 abut against the inner side wall surface of the eighth groove 2421, the second inner hook 223 faces the middle of the seventh groove 242, and the second solder tail 225 is disposed at the bottom of the second plastic body 24.

Further, the area of the first pad 111 is larger than that of the third pad 211.

Further, referring to fig. 1, the first plug 1 is inserted into the second plug 2, the first protrusion 142 is disposed in the seventh groove 242, and the second inner hook 223 of the second conductive terminal 221 contacts with the first conductive terminal 121. It will be appreciated that the design of the second inner hook 223 is beneficial to the electrical performance contact temperature. The fifth protrusion 234 of the second fixing mechanism 23 is engaged with the first through hole 133.

Further, when the first plug 1 is pulled out of the second plug 2, the third protrusion 1424 and the fourth protrusion 1425 on the first plug 1 can hook the second inner hook 223, so that the second inner hook 223 can be broken from the bent position, and a damaged effect is achieved; in the first fixing mechanism 13 and the second fixing mechanism 23 that are locked with each other, since the area of the first pad 111 fixed by the first fixing mechanism 13 is larger than the surface of the third pad 311 fixed by the second fixing mechanism 23, the first fixing mechanism 13 can drive the third pad 211 to be peeled off.

The principle and the implementation mode of the invention are explained by applying specific embodiments in the invention, and the description of the embodiments is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. A disposable anti-theft connector, comprising: a first plug and a second plug; the first plug includes:

2. The disposable anti-theft connector as recited in claim 1, wherein two first supporting portions of each first conductive terminal are triangular pyramid shaped, a rectangular surface of the first supporting portion is disposed on a side surface of the first conductive terminal, and an edge of the first supporting portion is disposed away from the first conductive terminal relative to the other two edges, and the edge is offset toward an end of the first solder leg where the first conductive terminal is not disposed.

3. A disposable theft-proof connector as recited in claim 1, wherein two first projections are provided on a face of said third plate opposite to the face provided with the first projections, the two first projections being respectively provided adjacent to the two first recesses, the first projections being provided in abutment with the first plate.

4. A disposable anti-theft connector according to claim 1, wherein a portion where said first projection meets said third plate is provided with a rib.

5. The disposable anti-theft connector of claim 1, wherein the area of said third pad is smaller than the area of said first pad.

6. A disposable anti-theft connector as recited in claim 1, wherein the fifth tab on the second securing mechanism is capable of latching within the first through hole of the first securing mechanism when the first plug is inserted into the second plug.